Many marine reptiles like this nothosaur went extinct at the end of the Triassic, one of five major mass extinction events on Earth. Brian Choo

Elementary new theory on mass extinctions that wiped out life

A fall in vital trace elements in our oceans could be one of the driving forces behind a number of mass extinction events during Earth’s history.
The cycles of nutrients into the oceans following the building of mountains may have been a prime driver of evolutionary change. John Long, Flinders University

Plate tectonics may have driven the evolution of life on Earth

The rise and fall of the essential elements for life could have influenced the way life evolved over many millions of years.
Slime on Earth… that’s all there was for a billion years. www.shutterstock.com

Life on Earth was nothing but slime for a ‘boring billion’ years

Evolution of life on Earth began about 3.5 billion years ago but it has not been a constant or continuous process. During the middle years of Earth’s history (1.8 billion to 800 million years ago), evolution…

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